Portable saw-sharpener.



W. W. STEGKBL.

PORTABLE SAW SHARPENER.

.APPLIGATION FILED AUG.19, 1913.

1, 1 1 1, 1 91 Patented Sept. 22, 1914.

2 SHEETSSHBET 1.

awumtoz WWI/mug THE NORRIS PETE RS CO. FHOTOiITH -Z, WA sHlNamn, n. c.

W. W. STEGKEL. PORTABLE SAW SHARPENER. APPLICATION FILED AUG. 19, 1913.1,1 1 1,191, Patented Sepb.22,1914.

2 SHBETSSHEET 2.

THE NORms PETERS Ca. PHOTYIJ ITHO,,WASHING1UN, D. 1..

30 struction and combination'of parts hereinemery wheel.

' ing this invention :Figure l is a side eletary cross sectional view onthe line. 7- 7 a tool including a shank 12 the lower end of Oregonyhaveinventedicertain new anduseful Improvements ,in I'Portable SaW' Sharpeners and-I do hereby declareithe following ,upon the saw toothfandforreleasing the Be it known that I, WILLIAM S'r Eonnm a citizen ofsthe1Unitedz States, residing.z at. Eastside, in the countytzof Goosstate, of:

to be a full, clear, and exacti desc'ription ofthe invention. such as,will" enable "others skilledf'in'ithe art to which it appertains'to Thisinvention relates to tools for sharp-. ening saw teeth of the removabletype, and.

hasfor object tol provide'lan extremely. simple portable tool whichwill. include an electric motor operated emery wheel and means forholding the saw tooth against the A further object provide means forcausing the emery wheel to exert pressure emery wheel when thesharpening operation is completed. p

i A still further object is to provide aptool of this character that maybe inexpensively constructed and may be formed of a few, simple partsthat will not easily get out of order.

With the above objects in view the inven- 3 tion consists of certainnovel detailsof conafter fully described and claimed, it beingunderstood that various modificationsmay be made in the minor details ofconstruction within the scope of the appended claims.

In the accompanying drawings illustratvation showing one side-of thetool. Fig. 2 is a side elevation showing the reverse .side of the tool.Fig. 3 is an endelevation. Fig. 4 is a plan view. Fig. is a fragmentaryvertical sectional view on the line 5-51Fig. 1 showing th'esaw toothsecuring pin. Fig. 6 is a fragmentary vertical sectional View on theline 6-6 Fig.1: Fig.7 is a fragmen- Fig. 1. Fig. 8 isa fragmentary crosssectional view .on the line 8-8 1.

Referring now to the drawings in which like charactersofreferencedesignate similar parts, 10 designates the saw tooth to be sharpened,the same being best shown inFig. 8, and being of the ordinary removabletype employed in saws; such as shown at 11. For sharpening this :typeofsaw tooth, I provide PoR'rerLri-sAws ARrENER.

Speei'ficatienof LefttersPatent. 7 Application filed August 7 pin.

'oF EAsTsIDE, ca sson.

of which'is slightlycurved forwardly and is provided on the outer sidewith a retaining plate; 14 thatis connected by. a web '15 to the curvedend, .thesaw toothbeinginserted be- .tween the plate and :said curvedend until atented Sept. 22], v

' which forms ahandle 13 in the upp end.

the heel portion ot thetooth hooksover the 11 top :edge of the web andthe point o't-the tooth :is .disposedabelow. the ,:web as shown.

For locking the tooth in place a locking and in advance of" pin 16 isslidably'lengagedthrough the web andcurved end andis connected attheouter end toan-angular lever 17 that is, pivoted at the elbowas at 18upon the platel l, the bell i crank lever being connected by a link -:19to an angularwoperating lever 20 that ispivoted on the shank l2, therebeing: a helical spr1ngf2t). ;;carr1ed by the handle 13 and bearinguponthis operating lever to nor mally hold the; in operative position,

pressure' upon?the operating lever against the tension of this springwithdrawing the An emery wheell is carried a 22 that 1s fitted upon theshank 12by means.

of bolts 23 passed through a longitudinal slot 24 in the shank andthrough a plate 25 on the opposite side of the shank from the slide,there being a helical spring 26 disexfl posed in the bottom of this slotand exerting an upwardpressure upon the slide whereby to normally holdthe emery wheel raised. The slide is connected 3 by a link 27 to anoperating. lever 28 that is pivoted on the shank, compression of thislevertoward the shank serving to draw down the slide whereby the emerywheel is forced against the edge of the tooth to sharpen the tooth.

For actuating the emerywheel an electric motor 29 is mounted upon theslide 22 and has a gear connection with a shaft 30 carried in bearings31 disposed on the slide,

wheel out ofien'gagement' with the tooth. The tooth may now be releasedby depressing the pin operating lever 20 to withdraw the pin. I

From the above description it will be seen that l have providedanextremely simple, I inexpensive and eflective tool for sharpening'sawteeth, such tool being formed of a few parts that, will not easily getout of order.'-

\Vhat is'"claimed,is:- v 1. A tool for sharpening saw teeth comqqprisinga shank having an opening receiv ing the saw tooth, a spring pressed pinengaged through said opening and adapted to.

pass through an opening in the sawtooth to hold the latter in place, aslide onsaid I shank,an emery Wheel carried by saidslid'e,

Copies of this patent may be obtained for means on said slide foractuating said emery i wheel, a spring normally holding said slide inposition to dispose said emery "wheel-out 1 of; engagement with thesawtooth, and an operatingflever on said shank connected to said slideand serving to move said slide to force'said emery wheel against saidtooth.

2. Atool for sharpening saw teeth comprisinga shank, a retaining plateon one side LOf said shank connected at the forward edge to said shankby a web, the saw tooth being positioned between said shank and saidplate with theheel curving over and bearing upon five cents each, byaddressing the Cmn'niissidnenbf Washington, 'D. G. y

the top edge of said web and the pointdisposed below and in advance ofsaid web, a

spring pressed pin carried by said shank engaged through an opening insaid tooth to anchor the latter, a slide on said shank, a

rotaryemery wheel on said slide, and means for moving said slide todispose said emery wheel in and out of engagement with said tooth.

prising a shank having an opening receivwheelon said-slide, an operativeconnection between said motor and said emery wheel,

a spring onsaid shanknormall holding-(said. slide in position to disposesa emery wheel out of engagement withhthe saw tooth,, and

an operating lever on saidshank connected to said slide and serving tomove SfiQlClSlldG .35 5 i In-testi-monywhereof, Iaflix my signa- A toforce said emery wheel againstsaidvtooth.

ture, in the p'resenceof two witnesses.

tool for sharpening saw teeth com-Q ing'the saw tooth, a springpressedpinengaged through saidopening and adapted to pass through an opening inthe saw; tooth-to hold the latter in place,'ia slide on said shank, anelectric motor onsa-id slide, an' emery WILLIAM w. s E -g Witnesses: 3

A. T.;-LAGERsrRo1vI, 3 1 J. S. HANSON.

ream,

